Does the cold weather affect the battery of electric vehicles?

Because the battery is seriously attenuated in winter, it consumes more electricity than before.

When the outside temperature is normal, the battery of the electric vehicle can basically guarantee the cruising range, but when the ambient temperature changes greatly, for example, in the sub-zero environment in Beijing, the power attenuation speed will suddenly accelerate. Moreover, even if the screen shows that there are still dozens of kilometers of remaining power, it is not necessarily the actual power, and there is a situation of "virtual power".

When the temperature drops, the storage capacity of some batteries will drop. Therefore, the storage capacity of electric vehicles will be weakened in winter, especially in the environment below 25 degrees. This requires users to strengthen maintenance and prolong service life.

According to professionals, electric vehicles need to be charged for about 8 hours in winter and two hours in summer. Some citizens don't pay attention and are used to charging all night, which will shorten the service life of batteries. The service life of electric vehicle battery also depends on the number of times consumers charge it. The more frequently you charge, the shorter the service life of the battery will be.

Professionals also advise consumers to use the original charger as much as possible and charge it in time. Don't wait until the battery is lower than 30% or the alarm light is on before recharging. Don't start the battery immediately when the electric car starts. The most suitable way is to help by bike.

Extended data

Precautions:

1. Find a warm place to charge.

When the ambient temperature is lower than 0℃, the electric vehicle will start charging, and the system will automatically heat the battery first. When the battery temperature reaches above 5℃, the car will really start charging. Some electric car owners think that charging their cars will suddenly slow down in winter, but it is actually extra time to heat and recharge the batteries.

Therefore, when charging ordinary cars, car owners should try to choose underground parking lots, closed garages and other places. This will help to improve the battery activity, not only reduce the loss of battery cruising range, but also improve the charging efficiency and save time.

Charge your battery for a while before you leave.

Recently, some car owners may have encountered this situation: the day before, the electric car had 60% to 70% power left, and when it started the next morning, it was found that there was 30% or even less power left. Some people call this situation "escape". In fact, this "power outage" is not a fault, but a disaster caused by low temperature.

When the electric car is running, the battery is in a state of continuous discharge, the temperature will be higher and the battery voltage will be higher. At this time, the remaining power of the electric vehicle is normal. However, after staying overnight in a low-temperature environment, when the battery cools and the voltage drops, the on-board system will automatically adjust the displayed power and mileage, resulting in an illusion of "power operation".

In this case, it is usually enough to go out early and charge the battery for 10 minutes.

References:

People's Network-The battery decays too fast in winter, and the bottleneck of electric vehicles still needs to be broken.

References:

Baidu encyclopedia-storage battery

References:

People's Network-How to reduce the battery life of electric vehicles in winter?